Friday, March22, 2019 L-36.com


Marine Weather and Tides
Kittery Point, ME

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:41AMSunset 6:58PM Friday March 22, 2019 8:29 AM EDT (12:29 UTC) Moonrise 9:03PMMoonset 7:56AM Illumination 98% Phase: Waning Gibbous; Moon at 16 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
    EDIT      (on/off)   Help
ANZ154 Coastal Waters From Cape Elizabeth, Me To Merrimack River, Ma Out 25 Nm- 754 Am Edt Fri Mar 22 2019
.gale warning in effect through Saturday evening...
Today..NE winds 15 to 25 kt with gusts up to 35 kt, becoming W 10 to 15 kt with gusts up to 25 kt this afternoon. Seas 5 to 8 ft, building to 7 to 9 ft this afternoon. Rain, mainly this morning. Vsby 1 to 3 nm, decreasing to variable to less than one quarter nm this afternoon.
Tonight..W winds 10 to 20 kt. Gusts up to 35 kt after midnight. Seas 7 to 10 ft. A chance of rain in the evening, then rain likely after midnight with vsby 1 to 3 nm.
Sat..NW winds 15 to 25 kt, becoming 20 to 25 kt in the afternoon. Gusts up to 40 kt. Seas 5 to 8 ft. A chance of rain in the morning with vsby 1 to 3 nm.
Sat night..NW winds 15 to 25 kt, becoming W 10 to 20 kt after midnight. Gusts up to 35 kt. Seas 3 to 5 ft.
Sun..W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft.
Sun night..W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Mon..NW winds around 10 kt. Seas 2 to 3 ft. A chance of showers.
Mon night..NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Tue..N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Tue night..N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
ANZ100 754 Am Edt Fri Mar 22 2019
Synopsis for stonington me to merrimack river ma out to 25 nm.. Low pressure over the mid atlantic region will lift north and east...reaching the gulf of maine today. This low will then lift north and east into the canadian maritimes on Saturday with a high pressure ridge sliding south of the waters through Sunday. A cold front dropping south out of canada will cross the waters late Monday and Monday night with high pressure building over the waters for the midweek. &&


7 Day Forecast for Marine Location Near Kittery Point CDP, ME
   Hourly   EDIT   Help
location: 43.06, -70.7     debug


Area Discussion for - Gray/Portland, ME
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kgyx 221028
afdgyx
area forecast discussion
national weather service gray me
628 am edt Fri mar 22 2019

Synopsis
Low pressure will deepen and track north to coastal maine late
today. Precipitation will continue to spread across the area
through morning. This will bring rain at the start to many
locations, except for the higher elevations which will likely
see snow all day. The rain will mix with or briefly change to
snow away from the me coast and in central and northern nh
around midday. The low will make its closest approach late
today, which will an end the widespread precipitation as drier
air aloft moves overhead. Colder air and gusty winds move in
from the west tonight and Saturday. Snow showers will break out
across much of new hampshire and western maine, with moderate
accumulations possible in the higher terrain. After a brief warm
up on Sunday, a cold front will cross the region Monday. Cold
but fair weather follows for Tuesday and Wednesday, with a
warming trend for the end of the week.

Near term until 6 pm this evening
625 am update... Forecast on track so far early this morning.

Have raised total snowfall for the coastal plain a bit based on
newest forecast sounding information and trends in upstream obs.

Area of strong uvvs just offshore of northeast ma continues to
move northward at this time and will be affecting the our CWA this
morning. A flip to snow (where it starts as rain) can be
expected away from the immediate coast for a few hours (and even
for an hour or two at the coast is possible). Snow could
oscillate with rain for a time this morning as well in
spots... All depending on uvvs and cooling of the column.

Warnings and advisories remain the same but could be expanded a
bit depending on trends over the next 1-3 hours.

Previously...

tricky, changeable forecast today. Low pressure currently
centered south of long island ny will move north-northeastward
and into the gulf of maine this afternoon. At the same time,
deepening mid level low will also move to a position just off
the maine coast by this afternoon.

The most concern at this time is the expected slug of heavy
precipitation that is forecast (by consensus of mesoscale
models) to move northward and through the region this morning
into the early afternoon hours. This slug of precipitation will
be forced by a tightening zone of frontogenesis extending to
the northeast of the deepening mid level low (back-bent mid
level warm front). Since much of the model suite has cooled in
the column (current obs are showing a cooler drier draw of air
coming in from the north), this makes the precip type forecast
tricky outside of high elevations since the temperature trace
may be straddling the 0c isotherm for several hours this morning
through about midday, even close to the coast. Therefore, even
areas outside of the advisory warning area could flip to heavy
wet snow for a time. As such, have increased snow accums a bit
at lower elevations on the coastal plain away from the immediate
coast. This will be dependent on getting into some really
intense upward motion, but it's possible. After the heavier band
of precipitation moves through early afternoon, sfc
temperatures will rise, and any snow will go back over to rain.

In the mountains, have issued a winter storm warning for heavy
wet snow as accumulating snowfall is expected to occur today and
well into tonight. This should get zone averages above 6 inches
in the warning area. Highest elevations could see a foot or
more. South of the warning area, have issued a winter weather
advisory for 3-6" of heavy wet snow - with highest amounts in
highest elevations. Power outages will be possible due to the
potential for downed branches in the advisory and warning area.

Precipitation will be considerably lighter this afternoon in
many areas with dry lot moving on in. Winds will increase from
the west this afternoon, especially across southern zones.

Overall, a forecast where near-term updates to follow trends
will likely be needed today as just a degree colder warmer in
the column will likely mean a big difference in ptypes. Some
areas may waver from rain to heavy wet snow and back again as
the temperatures profile wiggles around the 0c isotherm.

Short term 6 pm this evening through 6 pm Saturday
Snow to continue in the mountains tonight, with upslope
contributions from NW flow becoming more dominant as the night
goes on. In addition, it's possible that the coastal plain sees
a period of accumulating snow once again tonight as lobe of
vorticity moves across the region (remnants of merging northern
stream wave). Winds will increase as the night progresses due to
tightening pressure gradient. Drier air moves in on Saturday.

Aside from gusty west winds, we should see a decent amount of
sunshine.

Long term Saturday night through Thursday
Models to continue to advertise a break of the +pna pattern by
early to mid-week, but not before we get a shot colder air for
early to mid week as the trough is already in place before the
flow becomes less amplified. The good news it will at least be
dry after Monday and thru the rest of the week. Warming trend
expected thu-fri as new england sits in the anticyclonic flow n
of a closed low off the SE coast. The models have been
struggling with SRN stream closed lows, though, so not high
confidence.

Sat night should see NW flow break down as sfc high begins to
work in briefly, and winds will diminish,as will mtn shsn. Lows
will drop into the teens n, to the mid 20s s, and some colder
spots could decouple late with rad cooling for part of the
night. The high shifts offshore Sunday with a SW flow picking
up and temps warming to 40-45 in the n, and 50-55 in SRN and
interior SW me. Given the onshore flow, the me coast is likely
to stay in the mid to upper 40s.

Sunday night and Monday will see the passage of cold front as
srn stream energy phases to the south and drags [polar vortex
toward labrador. We will be on the equatorward of the cold air,
so it will turn colder, and tue-wed will likely run below
normal, but highs Tuesday, which will be the coldest day will
range from around 30 in the n, to the mid to upper 30s in the
south, and overnight lows will run from around 10-20 both
Monday and Tue night. The cold air shifts out fairly quickly,
and Wed will be a few degrees warmer than tue, but still on the
cool side for late march.

Thu and fri, will see the area under the influence of SW flow
with warmer temps, in the 40s and 50s, with warmest air
interior sections of the south, as onshore flow keeps the coast
cooler.

Aviation 10z Friday through Tuesday
Short term... Ifr conditions expected today in rain and snow.

Rain mainly at the coast, with snow in the interior. Conditions
improve on the coastal plain and across southern nh tonight with
low conditions continuing in the mountains.VFR returns Saturday
with gusty west winds.

Long term... MainlyVFR Sat night thru Tuesday. Khie could see
some shsn late Sun night early Monday.

Marine
Short term... SCA conditions likely today with some gale gusts
possible this morning. Westerly gales later tonight and Saturday
as low pressure moves off into the maritimes. Will keep a gale
watch going for the bays as confidence in wind speeds remains a
little low at this time.

Long term... SCA winds may linger through Sat night, but should
subside below SCA on Sunday, and stay below SCA levels through
Tuesday.

Hydrology
Warming temperatures and rainfall may be sufficient runoff to
cause rises on rivers and streams today through Saturday. At
this time QPF looks to be less an inch and half... With a good
portion of that being snow in the mountains. Even so, some ice
breakup will be possible, especially central and southern me.

Tides coastal flooding
Winds and seas begin to build right around the time of high tide
tonight. However, the vast majority of increased storm surge of
around a foot will occur around or shortly before the time of
the midday high tide on Friday. With high astronomical tides
already in place, minor coastal flooding is possible from
portland and points south during this tidal cycle. Most likely
we remain below 13 ft at portland, so a coastal flood advisory
has been issued from there south. Some splash over or erosion
may occur northward to penobscot bay and a coastal flood
statement has been issued.

00z wave models suggest long period waves arrive Friday night
into Saturday. Therefore, with high astronomical tides still in
place, there is the possibility for beach erosion and splash-
over to continue for subsequent tides. This additional splash-
over has been indicated in wave run-up output.

Gyx watches warnings advisories
Me... Winter weather advisory until midnight edt tonight for mez012-
013.

Winter storm warning until 8 am edt Saturday for mez007>009.

Coastal flood advisory from 11 am this morning to 3 pm edt
this afternoon for mez023-024.

Nh... Winter weather advisory until midnight edt tonight for
nhz003>007.

Winter storm warning until 8 am edt Saturday for nhz001-002.

Coastal flood advisory from 11 am this morning to 3 pm edt
this afternoon for nhz014.

Marine... Gale watch from late tonight through Saturday evening for
anz151-153.

Gale warning from midnight tonight to 8 pm edt Saturday for
anz150-152-154.

Near term... Ekster
short term... Ekster
long term... Cempa


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BGXN3 - Great Bay Reserve, NH 7 mi104 min NE 8 37°F 1000 hPa37°F
IOSN3 - Isle of Shoals, NH 8 mi89 min NNE 31 G 34 37°F 996.5 hPa (-5.8)37°F
44030 - Buoy B0102 - Western Maine Shelf 17 mi85 min NE 27 G 33 37°F 38°F6 ft997.5 hPa
WELM1 - 8419317 - Wells, ME 19 mi41 min 35°F 39°F997.1 hPa
WEXM1 - Wells Reserve, ME 21 mi89 min NNE 12 36°F 35°F
44098 - Jeffrey's Ledge, NH (160) 34 mi51 min 39°F7 ft
44029 - Buoy A0102 - Mass. Bay/Stellwagen 38 mi85 min NE 25 G 29 38°F 39°F8 ft994.3 hPa
44007 - PORTLAND 12 NM Southeast of Portland,ME 44 mi39 min NNE 27 G 33 35°F 38°F5 ft997.3 hPa (-7.1)35°F
CASM1 - 8418150 - Portland, ME 48 mi47 min 35°F 38°F
44013 - BOSTON 16 NM East of Boston, MA 49 mi39 min NNE 29 G 35 38°F 39°F6 ft992.2 hPa (-8.5)38°F

Wind History for Wells, ME
(wind in knots)    EDIT      (on/off)   Help
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
Last
24hr
S8
S8
G12
S9
S9
G12
S8
S6
S9
S7
S8
G11
S5
S5
S3
SE4
NE3
E7
G10
NE6
G9
E8
E8
G11
E11
G14
NE12
G18
NE13
G16
NE13
G18
NE14
G23
N17
G27
1 day
ago
--
S3
SE5
S9
S13
S11
S12
G15
S11
S12
G15
SW9
S7
S5
S7
SW3
--
SW3
G6
W4
G8
SW4
S4
S3
SW3
SW1
S1
NE1
2 days
ago
N4
G7
E1
SE7
SE7
S11
S8
G11
E5
S9
SE7
G10
E1
G5
NW7
G12
NW7
G10
NW3
N1
NW2
N2
W2
NW1
N1
N3
N2
N1
N2
N1

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pease Air Force Base / Portsmouth, NH7 mi33 minNNE 14 G 206.00 miLight Rain Fog/Mist36°F34°F94%996.2 hPa
Rochester - Skyhaven Airport, NH19 mi38 minN 13 G 1810.00 miUnknown Precip34°F34°F100%997 hPa
Sanford, Sanford Regional Airport, ME23 mi33 minNNE 18 G 233.00 miLight Snow Fog/Mist and Breezy34°F32°F92%997.8 hPa

Wind History from PSM (wind in knots)
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
Last 24hrSE5S8--SE14SE13SE12--SE17SE11SE12SE11SE11--E7E9E8E8E8NE11NE13
G18
NE13
G20
NE15
G21
--N14
G20
1 day agoCalmS3CalmW3E6SE11SE11SE12SE15SE12E7E3S5S4SW8SW5SW7S6S6S4S4S4CalmS3
2 days agoN5NW3CalmS3W11
G18
W11
G16
W10W9NW10
G17
W10NW7N9N6CalmCalmNW3CalmNW4CalmCalmCalmCalmW3Calm

Tide / Current Tables for Gerrish Island, Portsmouth Harbor, New Hampshire
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Gerrish Island
Click for Map
Fri -- 12:29 AM EDT     10.59 feet High Tide
Fri -- 06:38 AM EDT     -1.59 feet Low Tide
Fri -- 06:42 AM EDT     Sunrise
Fri -- 07:55 AM EDT     Moonset
Fri -- 12:54 PM EDT     10.68 feet High Tide
Fri -- 06:57 PM EDT     Sunset
Fri -- 07:02 PM EDT     -1.41 feet Low Tide
Fri -- 09:03 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
10.410.496.33.20.4-1.3-1.5-0.22.35.48.310.110.79.87.64.61.6-0.6-1.4-0.71.34.27.2

Tide / Current Tables for Portsmouth Harbor Entrance, New Hampshire Current
   EDIT      (on/off)   Help   One Week of Data
Portsmouth Harbor Entrance
Click for Map
Fri -- 02:18 AM EDT     -0.00 knots Slack
Fri -- 05:07 AM EDT     -2.42 knots Max Ebb
Fri -- 06:42 AM EDT     Sunrise
Fri -- 07:55 AM EDT     Moonset
Fri -- 08:47 AM EDT     0.00 knots Slack
Fri -- 10:59 AM EDT     1.72 knots Max Flood
Fri -- 02:37 PM EDT     -0.00 knots Slack
Fri -- 05:28 PM EDT     -2.48 knots Max Ebb
Fri -- 06:57 PM EDT     Sunset
Fri -- 09:03 PM EDT     Moonrise
Fri -- 09:11 PM EDT     0.01 knots Slack
Fri -- 11:25 PM EDT     1.77 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
1.51.10.3-0.9-2-2.4-2.3-1.8-10.31.41.71.51.20.6-0.4-1.7-2.4-2.4-2-1.4-0.311.7

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES Local Image of Northeast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Gray/Portland, ME (8,2,3,4)
      (on/off)   Help

Ground Weather Radar Station Portland, ME
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.